Should you buy a pulse oximeter?
There is debate among doctors about whether or not people need a pulse oximeter in their medical supply kits at home. “In normal times, unless a patient has true lung disease, there is no need for them to use pulse oximetry monitoring,” says Denyse Lutchmansingh, MD, a Yale Medicine pulmonologist. But these aren’t normal times. The American Lung Association advises against buying pulse oximeters unnecessarily and recommends people focus their awareness on other COVID-19 symptoms. However, in a recent New York Times opinion piece, an emergency physician from New Hampshire said if resources were directed toward earlier detection of silent hypoxia, doctors could do more to keep those patients off ventilators.
There are additional factors to consider, says Dr. Lutchmansingh. One is that knowledge of the virus is rapidly changing, which means advice can shift, as it did when the Centers for Disease Control and Prevention (CDC) changed its face mask recommendation in April to one that urges people to start wearing cloth masks in public. “We’re working very fast with limited pre-existing data. We are extrapolating a lot based on prior coronavirus infections, like severe acute respiratory syndrome [SARS] and Middle East respiratory syndrome [MERS],” she says.
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